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Questions
Questions
Questions
Questions
Questions
100
How do you know if an object will float in water based on its density
low density will float
200
What is boyles law
a fixed amount of gas at a constant temperature , the volume of the gas is inversely related to the temp
300
What is a chemical change?
happens when 1 or more substances change into new substances that have new and different properties
300
What is the difference between mass and weight?
mass is the amount of matter in an object and weight is the amount of gravitational force exerted on the object
300
What is the relationship between volume and pressure of a gas
They are inversely proportional and Boyles law
300
How do u measure an irregular solid
measure the amount of water displaced and that equals the volume of the object
300
How do atoms and molecules interact?
They are in motion and bump into eachother
400
Why do liquids flow
What is The particles in a liquid move fast enough to over come attractions between them, they slide
400
What are the 5 physical properties of matter
What is density ductility thermal conductivity mallebility and solubility
400
Where is the densest layer in a graduated cylinder
at the bottom
400
Name 4 expamples of chemical changes
freezing water to make ice sanding wood patio cracking ice cream melting
400
Name the 6 signs of a chemical change
gas is produced temp cchanges odor changes permanent color change solid is formed substance dissapears
500
What are the chemical properties?
flamability and reactivity
500
What do boyle and charles law explain?
Gas behavior laws
500
What is Charles Law
fixed amount of gas at a constant pressure , the volume and the temp change in the same direction
500
How do you calculate density
Mass over volume
500
What needs to happen to speed up and slow down the particles?
What is speed up- they need to be heatened to get more energy slow down- they need to be cooled because they dont have as much energy